*{
  margin: 0;
  padding: 0;
}
.w1100{
  width: 1100px;
  margin: 0 auto;
}
ul{
 list-style: none;
}
body{
  font-size: 12px;
}
img{
  display: block;
}
a{
  color: black;
  text-decoration: none;
}
h1,h2,h3,h4,h5,h6{
  font-weight: 500;
  
}
/* header */
.header{
  height: 98px;
}
.header >img{
  float: left;
  margin: 26px 0;
}
.header >form{
  float: right;
  height: 46px;
  width: 243px;
  margin-top: 26px;
  border: 1px solid #e2e2e2;
}
.header >form input{
  border: 0;
  height: 46px;
  width: 172px;
  outline: none;
  padding: 0 10px;
  float: left;
}.header >form button{
  border: 0;
  height: 46px;
  width: 50px;
  float: left;
  border-left: #e2e2e2 1px solid;
  background-color: white;
}

.header >form button img{
  margin: 0px auto 0;
}
/* 导航 */
.nav{
  height: 59px;
  background-color: #313131;
}
.nav ul{
  height: 59px;
  box-sizing: border-box;
  line-height: 59px;
}
.nav ul li{
  width: 121px;
  border-right: #4b4b4b 1px solid;
  height: 59px;
  box-sizing: border-box;
  float: left;
  text-align: center;
}
.nav ul .end{
  border-right: 0px ;
}
.nav ul li a{
  color: #f6f9f8;
}
.banner img{
  width: 100%;
}
/* 新闻 */
.new{
  height: 280px;
}
.new ul{
  float: left;
  height: 250px;
  width: 487px;
  margin-right: 25px; 
}
.new h3{
  font-size: 17px;
  margin: 37px 0 23px;
  line-height: 1;

}
.new ul li{
  line-height: 24px;
  width: 469px;
  text-indent: 18px;
  background: url(image/xtb.png) no-repeat 0 6px;
}
.new ul li span{
  float: right;
}
.new .mid{
  height: 250px;
  background-color: #f5f5f5;
  width: 350px;
  float: left;
  padding: 0 42px 0 26px;
  box-sizing: border-box;
}
.new .mid p{
color: #5d5d5d;
line-height: 24px;
}
.new .mid p+p{
  color: #9d9d9d;
  margin-top: 17px;
  }
  .new .right{
    width: 238px;
    height: 250px;
    box-sizing: border-box;
    float: left;
    padding: 0 34px 0 26px;
    background-color: #fbfbfb;
  }
  .new .right p{
    line-height: 24px;
    color: #7e7e7e;
    margin-top: 13px;
  }
  .new .right p+p{
    float: left;
    background-color: #afafaf;
    width: 60px;
    color: white;
    margin-top: 52px;
    height: 24px;
    border-radius: 4px;
  }
  .new .right img{
    float: right;
  }
  /* 前端开发 */
  .qian{
    width: 100%;
height: 288px;
overflow: hidden;
background-color: #f5f5f5;
  }
.qian .kaif{
  width: 1054px;
  overflow: hidden;
  margin: 47px auto 0;
  height: 196px;
  background-color: white;
}
.qian .kaif img{
  float: left;
  margin: 20px 20px 0 20px;
}
.qian .kaif h4{
  font-size: 18px;
  line-height: 1;
  margin-top: 25px;
  margin-bottom: 17px;

}
.qian .kaif h4+p{
  margin-bottom: 19px;
  line-height: 1;
}
.qian .kaif h4+p span{
  margin: 0 30px 0 20px;
  color: #29ad43;
}
.qian .kaif h4+p a{
  color:#524e48;
}
.qian .kaif p+p{
  line-height: 24px;
  color: #9f9a94;
  width: 1019px;
}
/* 名师 */
/* top */
.teach{
height: 414px;
}
.teach .top{
  height:77px;
  overflow: hidden;
  border-bottom: #dcdcdc 1px solid;
  }
  
.teach .top h3{
  height: 22px;
  font-size: 22px;
  margin: 36px 0 19px 4px;
  line-height: 1;
  color: #3b332b;

}
.teach .top h3 a{
  font-size: 16px;
  float: right;
  margin-top: 3px;
  color: #ed4819;
}
/* pic */
.teach .pic{
  height: 290px;
}
.teach .pic li{
  height: 290px;
  width: 262px;
  float: left;
  margin-top: 14px;
  background: #eff3f6 url(image/teach.png) no-repeat center 18px;
  margin-right: 17px;
}
.teach .pic li h4{
  text-align: center;
  margin-top: 126px;
  font-size: 15px;
  margin-bottom: 10px;
  color: #2a272b;
}
.teach .pic li h4+p{
  color: #ebeaff;
  background-color: #5fa5ed;
  width: 142px;
  height: 26px;
  margin: 0 auto 15px;
  text-align: center;
  line-height: 26px;
}
.teach .pic li p+p{
  width: 262px;
  line-height: 24px;
  height: 98px;
  color: #5c6064;
  padding: 10px 28px 0 17px;
  box-sizing: border-box;
  border-top: 1px solid #d5dadb;
}
.foot{
  height: 90px;
  background-color: #101c23;
padding-top: 39px;
}
.foot p{
  width: 1000px;
  line-height: 24px;
  color: #9a9c91;
  margin: 0 auto;
  text-align: center;
}